The population of Irrawaddy dolphin in Chilika lake in Odisha, famous for one of the biggest habitats for the sea mammal, dwindled as their number dropped from 153 in 2013 to 144 this year, state's Chief Wildlife Warden S S Srivastav said.

Odisha`s Chilika lagoon, which is a hotspot for biodiversity, has been named `destination flyways` by United Nations World Tourism Organization (UNWTO) following its inclusion in a list of eight such sites worldwide.

Nearly three lakh winter migratory and resident birds have arrived at Chilika Lake, Asia`s largest brackish water lagoon situated in Odisha, since the middle of October, a state wildlife official said Saturday.

Orissa Tourism Development Corporation (OTDC) has decided to dismantle a replica dinosaur for a Jurassic Park planned at Chadheihaga Island, a bird habitat on the Chilika lake, following objection from environmentalists.